A beam is attached to a wall at one end and supported by a cable at the other end. A small box is resting 50 cm from the far end of the beam. L= 4 m, m = 10 kg, M = 75 kg,

1) 0 = 30 The cable snaps! What is the angular acceleration of the beam as it falls? (The beam can be treated as a long thin rod. Assume that the box doesn't fall off until the beam has begun rotating). O=__ rad/s?

m 9 M